Ok, so I see many sites that sell all sorts of "old found blanks". For instance, I have seen Wacker razors for sale that are Dorko blades from their old stock of blades. Or "we found an old cache of old blanks" then ground by a custom maker. Or we rounded up these now defunct Blue Wonder blades for our razors. Why are all these "old" blanks popping up all over the place and are they worth it? I know that is all subjective but just looking for feelings on these kinds of items. I guess it all depends on the person doing the working and grinding?